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Method for reducing dibutyl phthalate

A technology for dibutyl phthalate and reduction, which is applied in the field of reduction of dibutyl phthalate, can solve the problems of large-scale application of secondary pollution, insufficient degradation, slow process and the like, so as to reduce the toxic effect of DBP , Environmentally friendly and easy to operate

Pending Publication Date: 2021-04-06
CHINA NAT CENT FOR FOOD SAFETY RISK ASSESSMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other existing PAEs reduction and control methods mainly include abiotic pathways and biological degradation pathways. Abiotic pathways include natural degradation including hydrolysis and photolysis, and physical or chemical methods to accelerate degradation or adsorption coagulation; adding exogenous substances to accelerate degradation can be To solve the situation of slow natural degradation, these methods may have shortcomings such as slow process, insufficient degradation, bleeding efficiency, easy introduction of secondary pollution, and limited large-scale application; therefore, it is obvious to carry out research on efficient, safe and green DBP reduction technology especially important

Method used

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  • Method for reducing dibutyl phthalate
  • Method for reducing dibutyl phthalate
  • Method for reducing dibutyl phthalate

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Experimental program
Comparison scheme
Effect test

Embodiment

[0045] The present invention provides the following experiments to verify the effect of low-temperature plasma on reducing DBP.

[0046] 1. Method:

[0047] DBP was treated with low-temperature plasma, and the treatment solution was subjected to isotope dilution liquid chromatography-tandem mass spectrometry (LMS) to detect the elimination efficiency, and the treatment solution was subjected to zebrafish acute embryo experiment (FET) to determine the biological effect.

[0048] 2. Materials and Reagents

[0049] Plasma generation device, DBP samples, standard products, plates, centrifuge tubes, water for sterilization, zebrafish breeding system (Beijing Aisheng Technology Co., Ltd.), etc.

[0050] 3. Experimental steps:

[0051] (1) Dosing

[0052] DBP, 1g / ml, add ethanol to dissolve to 0.5g / ml, add 1% BSA to form nanoemulsion, dilute to 0.1mg / ml with ultrapure water, and use for plasma treatment;

[0053] (2) Plasma treatment

[0054] The power supply used in this method...

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Abstract

The invention relates to the field of treatment of phthalate substances, in particular to a method for reducing dibutyl phthalate. According to the method, a plate-plate electrode low-temperature plasma excitation source based on a dielectric barrier discharge technology is used for generating low-temperature plasma to reduce dibutyl phthalate. According to the method, the reduction rate of dibutyl phthalate can reach about 60% or above, the digestion effect is good, and the toxicity to cells is smaller.

Description

technical field [0001] The present invention relates to the governance field of phthalates, in particular, to a method for reducing dibutyl phthalate. Background technique [0002] Phthalate esters (PAEs), commonly known as plasticizers, are widely used in the production and processing of plastic products to improve the flexibility and durability of plastics. PAEs occupy 70% of the global plasticizer market, and dibutyl phthalate (DBP) is one of the most widely used PAEs. [0003] PAEs have good compatibility with plastics, but they do not form covalent bonds with the plastic matrix, but are connected by hydrogen bonds or van der Waals forces. Therefore, when using plastic products, PAEs will gradually be released into the environment, thereby directly or Indirectly endanger the health of organisms. At present, PAEs have become the most common type of organic pollutants in the world. PAEs entering water, soil and other environmental systems are characterized by persistence...

Claims

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Application Information

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IPC IPC(8): A62D3/19C08J7/12C08J7/00C08L101/00A62D101/28
CPCA62D3/19A62D2101/28C08J7/123C08J2300/00
Inventor 方海琴刘爱东章程王雪马小开王恒刘珊张彤薇曹瀚文方业鑫丛良滋
Owner CHINA NAT CENT FOR FOOD SAFETY RISK ASSESSMENT
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